Well, the roots aren't really black black, but they are definitely stained a dark color from the LK. I don't suspect the roots because they pretty much look the same as they always have. There's really no way to get the water out other than fix my bins, but I was hoping to do that after harvest. My flower room has some serious design issues but I don't think its possible to change everything that needs to right now while its up and running. Also, the yellow started when I was using the new bins where all the water drained, so I don't think its part of the issue, but I could be wrong.

The leaves turn completely yellow, from the edges in, and stay that way for a day or two, then shrivel up completely and turn brown.